This example displays a large, centered "Hello VizHub!" message in a dark theme with light text, using the Ubuntu font. The visualization is built with D3 v5, which selects the `#message` div and sets its text content via the `select` function. The message itself is defined as an exported ES6 module in `myMessage.js`, demonstrating modular code organization. The page layout and styling are handled through external CSS, which imports the Ubuntu font from Google Fonts.